I have a son who has just turned one. I like my LEGO and my desk at work is covered in minifig's etc, the problem is my wife isn't as keen on them. I was wondering can anyone recommend a set that would be appropriate for me to get for my son so I can bring my hobby home without feeling the wrath of my wife, or is it a bit too soon to introduce him to LEGO?

Be honest. You're buying these for yourself? or your son? :) If for yourself, don't bother. Duplo is incredibly frustrating to play with if you're used to Lego. If for your son, I suspect at 1 he won't be that into it, but eventually he'll figure it out. But there's no hurry, and it won't scratch your lego itch.
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Mr. Shiny and New 安宇Aug 27 '14 at 23:49

In addition to DUPLO, there is also QUATRO. They are, as expected, 4X the size and impressively compatible with standard sized and DUPLO. I inherited some, so have no idea if they are still made or sold.

There is also a non-Lego product from Megabloks that is really good for young children. They studs on those blocks are rounded so they're easier to kids to get them to "lock" together. While not as sturdy as some of the Lego products, they do seem appropriate for real young children.